From 85f04f5475f8c6531e1d0af5bb758bab534e6b54 Mon Sep 17 00:00:00 2001
From: "copilot-swe-agent[bot]" <198982749+Copilot@users.noreply.github.com>
Date: Thu, 26 Feb 2026 15:13:10 +0000
Subject: [PATCH 1/2] Initial plan


From 54b9e6e07feddb779f540a063fbf3010010a1316 Mon Sep 17 00:00:00 2001
From: "copilot-swe-agent[bot]" <198982749+Copilot@users.noreply.github.com>
Date: Thu, 26 Feb 2026 15:16:42 +0000
Subject: [PATCH 2/2] Fix: redact Error message/stack contents in format.ts,
 add test

Co-authored-by: SynthLuvr <131367121+SynthLuvr@users.noreply.github.com>
---
 src/format.ts       | 3 ++-
 tests/index.test.ts | 9 +++++++++
 2 files changed, 11 insertions(+), 1 deletion(-)

diff --git a/src/format.ts b/src/format.ts
index 741e8c7..3a46888 100644
--- a/src/format.ts
+++ b/src/format.ts
@@ -25,7 +25,8 @@ const formatItem = (item: unknown): string => {
 
   // Check if this is an Error
   const error = ErrorType(item);
-  if (!(error instanceof type.errors)) return error.stack || error.message;
+  if (!(error instanceof type.errors))
+    return config.redact(error.stack || error.message);
 
   const stringified = (() => {
     try {
diff --git a/tests/index.test.ts b/tests/index.test.ts
index aecbb9c..07d04d9 100644
--- a/tests/index.test.ts
+++ b/tests/index.test.ts
@@ -1,4 +1,5 @@
 import { beforeAll, describe, expect, it } from "vitest";
+import { format } from "../src/format.js";
 import { setupLogging } from "../src/index.js";
 
 beforeAll(() => {
@@ -25,4 +26,12 @@ describe("logging", () => {
     );
     expect(true).toBe(true);
   });
+
+  it("redacts secret inside Error message and stack", () => {
+    const secret =
+      "78a2fca7a36abb167ecff613ce75cde8b4c04ef4579651f182a8cef9c86b00b5";
+    const result = format([new Error(`this will be redacted ${secret}`)]);
+    expect(result).not.toContain(secret);
+    expect(result).toContain("[REDACTED]");
+  });
 });